Oenothera Species, Pale Evening Primrose, White Buttercup

Oenotherapallida subsp. runcinata

Family
Onagraceae (on-uh-GRAY-see-ee)
Genus
Oenothera (ee-no-THEE-ruh)
Synonym
Oenothera runcinata
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)
Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
Pink
White/Near White
Bloom Time
Mid Spring
Late Spring/Early Summer
Mid Summer
Blooms repeatedly
Other Details
Category
Annuals
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Other details
May be a noxious weed or invasive
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Propagation Methods
From seed; sow indoors before last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Montgomery, Alabama

Selma, Alabama

Thomaston, Alabama

Arlington, Texas

San Antonio, Texas

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Gardener's Notes:

1
positive
2
neutrals
0
negative
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A
Thomaston, AL | March 2007 | positive

I've always loved this plant. It grows wild throughout the Black Belt of Alabama, often filling up medians and roadsides. I have a patch ...Read More

P
(Zone 8b) | January 2005 | neutral

The flowers seem similar to the common evening primrose. Oenothera speciosa. pokerboy.

S
S
(Zone 8b) | August 2004 | neutral

Amazing...how such short plants (the foliage, a rosette, reaches only a few cm ) bring such big flowers. I 've measured them 12 cm across...Read More

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